APA aipamena

DE RAJ KHANNA. ECOLOGY AND POLLUTION OF GANGA RIVER. ASHISH PUBLISHING HOUSE.

Chicago Style aipamena

DE RAJ KHANNA. ECOLOGY AND POLLUTION OF GANGA RIVER. ASHISH PUBLISHING HOUSE.

MLA aipamena

DE RAJ KHANNA. ECOLOGY AND POLLUTION OF GANGA RIVER. ASHISH PUBLISHING HOUSE.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.